a bodily posture resembling that of the fetus in the uterus, in which the body is curled with head and limbs drawn in, sometimes assumed in states of fear or emotional withdrawal.
Origin of fetal position
First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a bodily position similar to that of a fetus in the womb, with the knees up towards the chest and the head bent forward
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012